The problem you are describing can only be caused by three things: 1- a poorly charged or bad battery (which it sounds like you have already ruled out) 2- A poor, loose or dirty connection at the battery or starter (this is usually at the battery, but can be at the starter. you can test for this by wiggling the battery terminals and seeing if they move or if there is excessive corrosion) or 3- A faulty starter. You can test for this by literally banging on the starter with a hammer (kind of lightly) and seeing if it starts at that point. Let me know if any of this helps and good luck!

nevermind, it seems the 3.8 is the only option that year...the starter is located on the driver's side between the engine and transmission. It is about half way in between the top and bottom of the transmission (on the side)